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00024 #ifndef INCLUDE_MENUITEM_DEF
00025 #define INCLUDE_MENUITEM_DEF
00026 #endif
00027
00028 #include "config.h"
00029 #include <qevent.h>
00030 #include <qobjectlist.h>
00031 #include <qaccel.h>
00032
00033 #include <kconfig.h>
00034 #include <kglobalsettings.h>
00035 #include <kmenubar.h>
00036 #include <kapplication.h>
00037
00038 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00039 #include <kwin.h>
00040 #include <kwinmodule.h>
00041 #endif
00042
00043 #include <kglobal.h>
00044 #include <kdebug.h>
00045
00046 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00047 #include <qxembed.h>
00048 #endif
00049
00050 #include <kmanagerselection.h>
00051 #include <qtimer.h>
00052
00053 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00054 #include <X11/Xlib.h>
00055 #include <X11/Xutil.h>
00056 #include <X11/Xatom.h>
00057 #endif
00058
00059
00060
00061
00062
00063
00064
00065
00066
00067
00068
00069
00070
00071
00072 class KMenuBar::KMenuBarPrivate
00073 {
00074 public:
00075 KMenuBarPrivate()
00076 : forcedTopLevel( false ),
00077 topLevel( false ),
00078 wasTopLevel( false ),
00079 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00080 selection( NULL ),
00081 #endif
00082 min_size( 0, 0 )
00083 {
00084 }
00085 ~KMenuBarPrivate()
00086 {
00087 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00088 delete selection;
00089 #endif
00090 }
00091 bool forcedTopLevel;
00092 bool topLevel;
00093 bool wasTopLevel;
00094 int frameStyle;
00095 int lineWidth;
00096 int margin;
00097 bool fallback_mode;
00098 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00099 KSelectionWatcher* selection;
00100 #endif
00101 QTimer selection_timer;
00102 QSize min_size;
00103 static Atom makeSelectionAtom();
00104 };
00105
00106 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00107 static Atom selection_atom = None;
00108 static Atom msg_type_atom = None;
00109
00110 static
00111 void initAtoms()
00112 {
00113 char nm[ 100 ];
00114 sprintf( nm, "_KDE_TOPMENU_OWNER_S%d", DefaultScreen( qt_xdisplay()));
00115 char nm2[] = "_KDE_TOPMENU_MINSIZE";
00116 char* names[ 2 ] = { nm, nm2 };
00117 Atom atoms[ 2 ];
00118 XInternAtoms( qt_xdisplay(), names, 2, False, atoms );
00119 selection_atom = atoms[ 0 ];
00120 msg_type_atom = atoms[ 1 ];
00121 }
00122 #endif
00123
00124 Atom KMenuBar::KMenuBarPrivate::makeSelectionAtom()
00125 {
00126 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00127 if( selection_atom == None )
00128 initAtoms();
00129 return selection_atom;
00130 #else
00131 return 0;
00132 #endif
00133 }
00134
00135 KMenuBar::KMenuBar(QWidget *parent, const char *name)
00136 : QMenuBar(parent, name)
00137 {
00138 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00139 QXEmbed::initialize();
00140 #endif
00141 d = new KMenuBarPrivate;
00142 connect( &d->selection_timer, SIGNAL( timeout()),
00143 this, SLOT( selectionTimeout()));
00144
00145 #if (QT_VERSION-0 >= 0x030200) // XRANDR support
00146 connect( qApp->desktop(), SIGNAL( resized( int )), SLOT( updateFallbackSize()));
00147 #endif
00148
00149 if ( kapp )
00150
00151 connect( kapp, SIGNAL(toolbarAppearanceChanged(int)),
00152 this, SLOT(slotReadConfig()));
00153
00154 slotReadConfig();
00155 }
00156
00157 KMenuBar::~KMenuBar()
00158 {
00159 delete d;
00160 }
00161
00162 void KMenuBar::setTopLevelMenu(bool top_level)
00163 {
00164 d->forcedTopLevel = top_level;
00165 setTopLevelMenuInternal( top_level );
00166 }
00167
00168 void KMenuBar::setTopLevelMenuInternal(bool top_level)
00169 {
00170 if (d->forcedTopLevel)
00171 top_level = true;
00172
00173 d->wasTopLevel = top_level;
00174 if( parentWidget()
00175 && parentWidget()->topLevelWidget()->isFullScreen())
00176 top_level = false;
00177
00178 if ( isTopLevelMenu() == top_level )
00179 return;
00180 d->topLevel = top_level;
00181 if ( isTopLevelMenu() )
00182 {
00183 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00184 d->selection = new KSelectionWatcher( KMenuBarPrivate::makeSelectionAtom(),
00185 DefaultScreen( qt_xdisplay()));
00186 connect( d->selection, SIGNAL( newOwner( Window )),
00187 this, SLOT( updateFallbackSize()));
00188 connect( d->selection, SIGNAL( lostOwner()),
00189 this, SLOT( updateFallbackSize()));
00190 #endif
00191 d->frameStyle = frameStyle();
00192 d->lineWidth = lineWidth();
00193 d->margin = margin();
00194 d->fallback_mode = false;
00195 bool wasShown = !isHidden();
00196 reparent( parentWidget(), WType_TopLevel | WStyle_Tool | WStyle_NoBorder, QPoint(0,0), false );
00197 #if defined Q_WS_X11 && ! defined K_WS_QTONLY //FIXME
00198 KWin::setType( winId(), NET::TopMenu );
00199 #endif
00200 QMenuBar::setFrameStyle( NoFrame );
00201 QMenuBar::setLineWidth( 0 );
00202 QMenuBar::setMargin( 0 );
00203 updateFallbackSize();
00204 d->min_size = QSize( 0, 0 );
00205 if ( wasShown )
00206 show();
00207 } else
00208 {
00209 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00210 delete d->selection;
00211 d->selection = NULL;
00212 #endif
00213 setBackgroundMode( PaletteButton );
00214 setFrameStyle( d->frameStyle );
00215 setLineWidth( d->lineWidth );
00216 setMargin( d->margin );
00217 setMinimumSize( 0, 0 );
00218 setMaximumSize( QWIDGETSIZE_MAX, QWIDGETSIZE_MAX );
00219 menuContentsChanged();
00220 resize( sizeHint());
00221 if ( parentWidget() )
00222 reparent( parentWidget(), QPoint(0,0), !isHidden());
00223 }
00224 }
00225
00226 bool KMenuBar::isTopLevelMenu() const
00227 {
00228 return d->topLevel;
00229 }
00230
00231
00232 void KMenuBar::show()
00233 {
00234 QMenuBar::show();
00235 }
00236
00237 void KMenuBar::slotReadConfig()
00238 {
00239 KConfig *config = KGlobal::config();
00240 KConfigGroupSaver saver( config, "KDE" );
00241 setTopLevelMenuInternal( config->readBoolEntry( "macStyle", false ) );
00242 }
00243
00244 bool KMenuBar::eventFilter(QObject *obj, QEvent *ev)
00245 {
00246 if ( d->topLevel )
00247 {
00248 if ( parentWidget() && obj == parentWidget()->topLevelWidget() )
00249 {
00250 if( ev->type() == QEvent::Resize )
00251 return false;
00252 if ( ev->type() == QEvent::Accel || ev->type() == QEvent::AccelAvailable )
00253 {
00254 if ( QApplication::sendEvent( topLevelWidget(), ev ) )
00255 return true;
00256 }
00257 if(ev->type() == QEvent::ShowFullScreen )
00258
00259 setTopLevelMenuInternal( d->topLevel );
00260 }
00261 }
00262 else
00263 {
00264 if( parentWidget() && obj == parentWidget()->topLevelWidget())
00265 {
00266 #if QT_VERSION >= 0x030300
00267 if( ev->type() == QEvent::WindowStateChange
00268 #else
00269 if( ( ev->type() == QEvent::ShowNormal || ev->type() == QEvent::ShowMaximized )
00270 #endif
00271 && !parentWidget()->topLevelWidget()->isFullScreen() )
00272 setTopLevelMenuInternal( d->wasTopLevel );
00273 }
00274 }
00275 return QMenuBar::eventFilter( obj, ev );
00276 }
00277
00278
00279 void KMenuBar::showEvent( QShowEvent *e )
00280 {
00281 QMenuBar::showEvent(e);
00282 }
00283
00284 void KMenuBar::updateFallbackSize()
00285 {
00286 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00287 if( !d->topLevel )
00288 return;
00289 if( d->selection->owner() != None )
00290 {
00291
00292 d->selection_timer.stop();
00293 if( d->fallback_mode )
00294 {
00295 d->fallback_mode = false;
00296
00297 #endif
00298 setMaximumSize( QWIDGETSIZE_MAX, QWIDGETSIZE_MAX );
00299 menuContentsChanged();
00300 resize( sizeHint());
00301 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00302 }
00303 return;
00304 }
00305 if( d->selection_timer.isActive())
00306 return;
00307 d->selection_timer.start( 100, true );
00308 #endif
00309 }
00310
00311 void KMenuBar::selectionTimeout()
00312 {
00313 if ( d->topLevel )
00314 {
00315 d->fallback_mode = true;
00316 KConfigGroup xineramaConfig(KGlobal::config(),"Xinerama");
00317 int screen = xineramaConfig.readNumEntry("MenubarScreen",
00318 QApplication::desktop()->screenNumber(QPoint(0,0)) );
00319 QRect area = QApplication::desktop()->screenGeometry(screen);
00320 #if QT_VERSION < 0x030200
00321 int margin = frameWidth() + 2;
00322 #else // hopefully I'll manage to persuade TT on Fitts' Law for QMenuBar for Qt-3.2
00323 int margin = 0;
00324 #endif
00325 move(area.left() - margin, area.top() - margin);
00326 setFixedSize(area.width() + 2* margin , heightForWidth( area.width() + 2 * margin ) );
00327 #if defined Q_WS_X11 && ! defined K_WS_QTONLY //FIXME
00328 int strut_height = height() - margin;
00329 if( strut_height < 0 )
00330 strut_height = 0;
00331 KWin::setStrut( winId(), 0, 0, strut_height, 0 );
00332 #endif
00333 }
00334 }
00335
00336 int KMenuBar::block_resize = 0;
00337
00338 void KMenuBar::resizeEvent( QResizeEvent *e )
00339 {
00340 if( e->spontaneous() && d->topLevel && !d->fallback_mode )
00341 {
00342 ++block_resize;
00343 QMenuBar::resizeEvent(e);
00344 --block_resize;
00345 }
00346 else
00347 QMenuBar::resizeEvent(e);
00348 }
00349
00350 void KMenuBar::setGeometry( const QRect& r )
00351 {
00352 setGeometry( r.x(), r.y(), r.width(), r.height() );
00353 }
00354
00355 void KMenuBar::setGeometry( int x, int y, int w, int h )
00356 {
00357 if( block_resize > 0 )
00358 {
00359 move( x, y );
00360 return;
00361 }
00362 checkSize( w, h );
00363 if( geometry() != QRect( x, y, w, h ))
00364 QMenuBar::setGeometry( x, y, w, h );
00365 }
00366
00367 void KMenuBar::resize( int w, int h )
00368 {
00369 if( block_resize > 0 )
00370 return;
00371 checkSize( w, h );
00372 if( size() != QSize( w, h ))
00373 QMenuBar::resize( w, h );
00374
00375 }
00376
00377 void KMenuBar::checkSize( int& w, int& h )
00378 {
00379 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00380 if( !d->topLevel || d->fallback_mode )
00381 return;
00382 #endif
00383 if( parentWidget() && parentWidget()->width() == w )
00384 {
00385
00386
00387
00388 ++block_resize;
00389 QSize s = sizeHint();
00390 w = s.width();
00391 h = s.height();
00392 --block_resize;
00393 }
00394
00395
00396
00397 w = KMAX( w, d->min_size.width());
00398 h = KMAX( h, d->min_size.height());
00399 }
00400
00401 bool KMenuBar::x11Event( XEvent* ev )
00402 {
00403 #if defined Q_WS_X11 && ! defined K_WS_QTONLY
00404 if( ev->type == ClientMessage && ev->xclient.message_type == msg_type_atom
00405 && ev->xclient.window == winId())
00406 {
00407
00408
00409
00410
00411 d->min_size = QSize( ev->xclient.data.l[ 1 ], ev->xclient.data.l[ 2 ] );
00412
00413 menuContentsChanged();
00414 resize( sizeHint());
00415 return true;
00416 }
00417 #endif
00418 return QMenuBar::x11Event( ev );
00419 }
00420
00421 void KMenuBar::setFrameStyle( int style )
00422 {
00423 if( d->topLevel )
00424 d->frameStyle = style;
00425 else
00426 QMenuBar::setFrameStyle( style );
00427 }
00428
00429 void KMenuBar::setLineWidth( int width )
00430 {
00431 if( d->topLevel )
00432 d->lineWidth = width;
00433 else
00434 QMenuBar::setLineWidth( width );
00435 }
00436
00437 void KMenuBar::setMargin( int margin )
00438 {
00439 if( d->topLevel )
00440 d->margin = margin;
00441 else
00442 QMenuBar::setMargin( margin );
00443 }
00444
00445 void KMenuBar::virtual_hook( int, void* )
00446 { }
00447
00448 #include "kmenubar.moc"